Two Bars,A and B,each of Length 2

question 34

Multiple Choice

Two bars,A and B,each of length 2.0 m and cross sectional area 1.0 m²,are placed end to end as shown in the figure.
The thermal conductivities of the bars are
k_A = 439 J/(s × m × K) and k_B = 887 J/(s × m × K) ,respectively.The left end of bar A is maintained at 373 K while the right end of B is maintained at 273 K.
-How much heat passes the interface between A and B in 6.0 s?

• A)6.0 × 10⁴ J
• B)1.5 × 10³ J
• C)1.2 × 10⁵ J
• D)8.8 × 10⁴ J
• E)3.0 × 10⁴ J

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Definitions:

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refers to practices and beliefs rooted in ancient forms of spirituality and healing, often involving rituals, ceremonies, and communication with the spiritual world.

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Conditions in which the mind perceives, experiences, or interprets reality differently, often due to meditation, drugs, sleep, or psychological conditions.

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